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Per information on the manufacturers plate mounted on the AST, the tank is approximately <br /> 19 years old and we believe the tank will maintain its functional integrity for another five (5) <br /> years. <br /> (4) description and evaluation of any leak detection equipment; <br /> The tank is open to the atmospheric pressure and leak detection is accomplished by <br /> electronic level detection system with audible and visual alarms and visual observation of <br /> any potential liquid leaks into the secondary and tertiary containment. <br /> (5)description and evaluation of any corrosion protection equipment, devices, or <br /> material; <br /> The steel tank has a corrosion resistant coating. <br /> (6) description and evaluation of any spill prevention or overfillequipment, <br /> The tank is open to the atmospheric pressure and leak detection is accomplished by <br /> electronic level detection system with audible and visual alarms and visual observation of <br /> any potential liquid leaks into the secondary and tertiary containment. The tank containment <br /> contains 110% of the volume and is constructed of steel that is compatible up to the pH of <br /> the liquids stored. <br /> n, (7) description and evaluation of secondary containment for the tank system <br /> (secondary containment must meet minimum standards as specified in <br /> subsections 6)(1) through 6)(3) of this section) including applicable secondary <br /> containment for ancillary equipment as required in subsection 66265.193(0; <br /> (1) tank system must have secondary containment capable of containing 100 <br /> percent of the contents of the tank and ancillary piping volume;and <br /> (2) if the tank system is exposed to precipitation, the secondary containment <br /> system must have sufficient capacity, in addition to that required in <br /> subsection 6)(1) of this section, to contain run-on and infiltration from a 25- <br /> year, 24-hour rainfall event; <br /> (3) tank system secondary containment shall be provided with a leak detection <br /> system that is designed and operated so that it will detect either the failure <br /> of the primary and secondary containment structure or any release of <br /> hazardous waste or accumulated liquid in the secondary containment <br /> system within 24 hours, or at the earliest practicable time if the existing <br /> detection technology or site conditions will not allow detection of a release <br /> within 24 hours. <br /> The tank containment contains 110% of the volume and is constructed of steel that is <br /> compatible up to the pH of the liquids stored. Please refer to attached Figures 1.OS <br /> inspects all tank containments on a daily basis. <br /> Hazardous Waste Tank Assessment Report Martin Consulting <br /> Oil Stop,301 W. Kettleman Lane Page 11 of 29 Group,Inc.—Structural Design <br />